Catalyst bed temperature derivatives guide PLC reactor switching between dehydrogenation and regeneration to raise productivity while maintaining safety.
Embedded electric heating keeps paraffin dehydrogenation reactors more isothermal, cutting CO2 emissions and extending catalyst run length.
Concentrated solar radiation pyrolyzes hydrocarbons on a porous substrate to make olefins without steam, cutting CO2 emissions and yielding solid carbon.
Heated hydrocarbon solvent dissolves reactor polymer, while cooling and filtration remove deposits without disassembly or manual entry.
This case shows how solvent-free metallocene and activator catalysis simplifies PAO production while achieving a viscosity index above 140.
A curved wave guide transmits electromagnetic radiation directly into a reactive medium, eliminating complex wave-transparent reactors and reducing device size.
Melt crystallization purifies 2,6-dimethylnaphthalene while eliminating solvent recovery complexity.
Elevated temperature operation prevents condensation and polymerization reactions that foul adsorbents, maintaining capacity during catalytic dehydrogenation.
Segmented sulfonate structures mask polarity to cross cell barriers, enabling intracellular delivery of water-soluble fluorescent imaging agents.
Gas phase MTW zeolite catalysis maintains ethylbenzene yield despite water deactivating conventional liquid phase catalysts.
A zinc carboxylate oxo complex scavenges hydrogen sulfide in hydrocarbons using mixed acid ligands.
Cyclic dialkylcarbonate solvents extract diolefins from hydrocarbon mixtures via liquid-liquid equilibrium.
A desulfurization process maintains constant hydrogen partial pressure to optimize sulfur removal efficiency.
Alkylation reactor integrates distillation separation with zeolite catalysis to convert aromatic hydrocarbons into heavier diesel range products.
Splitting alkylation effluent into distinct product-rich and recycle streams directs unreacted aromatics to primary stages.
A basic catalyst converts weakly basic nitrogen compounds into basic forms using elevated temperatures and water presence.
A dual adsorber system cleans hydrocarbon streams using a hydrogenated desorption stream to remove impurities.
Continuous catalyst circulation limits residence time in the reactor, reducing coke formation and preventing degradation during propane dehydrogenation.
Engineered cells convert renewable carbon into isoprene using heterologous nucleic acids encoding isoprene synthase polypeptides.
Recycle paraffins to moderate exothermic heat, maintaining 2-phenyl content and yields without hydrogen fluoride.
Acidic clay converts weakly basic nitrogen compounds to more basic forms for effective adsorption, reducing catalyst poisoning and zeolite costs.
Upstream caustic extraction removes sulfur from feed streams before fractionation, eliminating multiple downstream units and lowering operational costs.
Catalyst transfer system uses condensible vapor blanket to manage pressure differentials for safe liquid movement.
Alkane multi-sulfonic acids replace expensive fluoroalkane sulfonic acids to lower production costs while maintaining catalytic acidity.
An adsorptive separation unit recovers butadiene from dilute process streams without mechanical compression.
An integrated process co-produces C3, C4, and C5 olefins by dehydrogenating different alkane feeds in separate reaction zones.
Quinone methides suppress cyclopentadiene polymerization at high temperatures, preventing deposits that reduce process stream productivity.
Combines hydro-regeneration and hydro-dechlorination into one unit to remove chloride contaminants from alkylate gasoline while recycling hydrogen off-gas.
Quench heat exchanger rapidly cools oxidative dehydrogenation reactor effluent to prevent unwanted gas phase reactions and solid fouling.
Segmented reactor zones confine separated olefinic gases in a smaller volume, terminating reactions to improve propylene selectivity by nearly 9%.
Two-step catalytic process converts natural oils into liquid biohydrocarbons at atmospheric pressure using sequential decarboxylation and hydrogenation.
Segmented dehydrogenation recovers aromatic hydrocarbons from byproducts, resolving the trade-off between conversion rates and process complexity.
Diels-Alder synthesis of cyclohexene derivatives replaces petroleum feedstocks with biomass, reducing environmental impact while maintaining economic viability.
Segmented reactor assembly with interstage cooling reduces heavies production while maintaining selectivity at lower aromatic to olefin ratios.